-85.86% is the change from 573 to 81
Calculation steps:
[( 81 - 573 ) ÷ 573] x 100 = -85.86%
Formula
Percentage change = [(81 - 573) / 573] x 100
Subtract the new number by the original number
81 - 573 = -492
-492 ÷ 573 = -0.8586387434554974
-0.8586387434554974 x 100 = -85.86%